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ec6378facd
This is a partial revert of r244615 (http://reviews.llvm.org/D11942), which caused a major regression in debug info quality. Turning the artificial __MergedGlobal symbols into private symbols (l__MergedGlobal) means that the linker will not include them in the symbol table of the final executable. Without a symbol table entry dsymutil is not be able to process the debug info for any of the merged globals and thus drops the debug info for all of them. This patch is enabling the old behavior for all MachO targets while leaving all other targets unaffected. rdar://problem/29160481 https://reviews.llvm.org/D26531 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@286607 91177308-0d34-0410-b5e6-96231b3b80d8
53 lines
1.7 KiB
LLVM
53 lines
1.7 KiB
LLVM
; RUN: llc %s -mtriple=aarch64-none-linux-gnu -aarch64-enable-global-merge -global-merge-on-external -o - | FileCheck %s
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; RUN: llc %s -mtriple=aarch64-linux-gnuabi -aarch64-enable-global-merge -global-merge-on-external -o - | FileCheck %s
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; RUN: llc %s -mtriple=aarch64-apple-ios -aarch64-enable-global-merge -global-merge-on-external -o - | FileCheck %s --check-prefix=CHECK-APPLE-IOS
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@x = global i32 0, align 4
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@y = global i32 0, align 4
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@z = global i32 0, align 4
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define void @f1(i32 %a1, i32 %a2) {
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;CHECK-APPLE-IOS-LABEL: _f1:
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;CHECK-APPLE-IOS-NOT: adrp
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;CHECK-APPLE-IOS: adrp x8, __MergedGlobals_x@PAGE
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;CHECK-APPLE-IOS: add x8, x8, __MergedGlobals_x@PAGEOFF
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;CHECK-APPLE-IOS-NOT: adrp
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store i32 %a1, i32* @x, align 4
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store i32 %a2, i32* @y, align 4
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ret void
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}
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define void @g1(i32 %a1, i32 %a2) {
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;CHECK-APPLE-IOS-LABEL: _g1:
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;CHECK-APPLE-IOS: adrp x8, __MergedGlobals_x@PAGE
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;CHECK-APPLE-IOS: add x8, x8, __MergedGlobals_x@PAGEOFF
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;CHECK-APPLE-IOS-NOT: adrp
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store i32 %a1, i32* @y, align 4
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store i32 %a2, i32* @z, align 4
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ret void
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}
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;CHECK: .type .L_MergedGlobals,@object // @_MergedGlobals
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;CHECK: .local .L_MergedGlobals
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;CHECK: .comm .L_MergedGlobals,12,8
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;CHECK: .globl x
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;CHECK: x = .L_MergedGlobals
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;CHECK: .size x, 4
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;CHECK: .globl y
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;CHECK: y = .L_MergedGlobals+4
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;CHECK: .size y, 4
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;CHECK: .globl z
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;CHECK: z = .L_MergedGlobals+8
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;CHECK: .size z, 4
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;CHECK-APPLE-IOS: .zerofill __DATA,__common,__MergedGlobals_x,12,3
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;CHECK-APPLE-IOS: .globl _x
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;CHECK-APPLE-IOS: = __MergedGlobals_x
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;CHECK-APPLE-IOS: .globl _y
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;CHECK-APPLE-IOS: _y = __MergedGlobals_x+4
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;CHECK-APPLE-IOS: .globl _z
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;CHECK-APPLE-IOS: _z = __MergedGlobals_x+8
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;CHECK-APPLE-IOS: .subsections_via_symbols
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